I have a Redhead Pursuit 3-9X40 A0 muzzleloader scope with a drop compensater that goes from 10yrds all the way up to 300yrds and after you pass the 300yrd mark it will turn all the way to something that looks like a side ways 8.

What I need to know is when I sight it in lets say at 100yrds do I set the compensater to 100yrds? Not for sure if the scope has the same paradox as a regular muzzleloader scope??? Aslo what does the side ways 8 mean??

I know these ?'s may be silly but I have never used a scope like this on any gun. I went to Basspro website and they don't sell it anymore also done a google search no dice there either.